Spindle and bobbin



4 Jan. "1 7, 1928. 1,656,553

w. BESWICK SPINDLE AND BOBBIN Filed Jan. 23. 1925 Patented Jan. 17, 1928.

UNITED STATES 155355 5 PATENT F CE,

WILLIAM nnswIoK, or seen, MAINE, AssIeivon-To seoonewnnn errors, or some, mssseonusn'r'rs, A oonteone'rron or masssonnsnrtrs.

sirnnizs Ann BOBBIN'.

Application fi ed January This invention relates to spindles and bobbins of the type used in textile machinery, especially in spinning and twisting traines.

It is an important object of the invention to devise a spindle and bobbin construction in which the bobbin will be positively driven and will be held securely in its running position while, at the same time, being readily removable from the spindle or replaceable thereon while the spindle is runningat normal speed. It has been attempted. heretofore to secure these advantages in the clutch type of spindle. Spindles of this type are, however, open to the objection that they are relatively complicated in construction and therefore expensive to manufacture, and

time there is considerable ariation in the level of the bobbins in a given spinning t'rauie; The same ring rail controls the feed of the yarn or thread to all oi? these bobbins and the traverse of thisrail niust,'thereiore, be adjusted for the worstcondition. In other words, the upper limit or" movement of the rail must be set for the lowest bobbin, while the lower limit of traverse must be adjusted for the highest bobbin. This is objectionable not only in reducing the height of the thread bodies on the bobbins but also in locating the t'eeler bunches, which are initially wound on theb'as'es of the bobbins, at dill erent elevations. That is, it is customary in beginning the filling ot' a bobbin to wind a small bunch of yarn on the base oil the bobbin for subsequent engagement with the t'eeler mechanism in the 100m. It is important for the proper operation of this teeler mechanism that these bunches of yarn shall be wound in substantially the same position on all the bobbins. It is an objectof this invention, therefore, to devise a construction of spindle and bobbin which will ensure the support of the bobbins at sub-, stantially the same level' in a spinning or twisting frame and thus eliminate the chili} culties just described.

23, 1925. Serial No. 4,2281

The nature of the invention will be readily understood from the following description when read in connection WitlltlldfiCCOID- panying drawings, and the'novel features will be particularly pointed out in the ap pended claims,

Referring now to the drawings,

Figure 1 is a perspectiveView of a spindle with a bobbin thereon;

Fig. 2 is a vertical, crosssectional view of the spindle and bobbin shown in Fig. 1;

F 3 is a perspective view of the sleeve portion of the whirl and'the' cooperating portion of the bobbin; i 7

Fig. 4- is a vertical cross sectional View the parts shown in Fig. 8, showing tliern in their cooperative relationship to each other; and

Figs. 5 and 6 are perspective, cross sec tional views or the parts shown in Fig. 4, showing them in differentrelationships to each other. i

The construction shown comprises a spindle 2 which may be of the usual form. Fric tionally secured onthis spindle is a" whirl 3 which includes a pulley section at and a sleeve portion 5, the latter portionprojecting upwardly from the main body otthe whirl. The sleeve is tapered at a somewhat smaller angle than the corresponding p011;- tion ofwhirls of the usual type.

Formed in theupper part of thelsleeve 5 are severalgrooves 6. Each of these grooves is of very short circumferential length and extends from theperiphe'ral surface of: the sleeve inwardlyvand upwardly to the upper surface thereof, opening into thefto p surface of the sleeve at a point close to the spindle. Each groove is very sharply inclined.- It will be obvious from an inspectionof the drawings that the lower wall 7 of each groove is very abrupt or flat, while the upper wall 8 is gradually inclined, this inclination providing a portion 9 which is outwardly bulged and overhangs the bed or bottom of the groove; I The bobbin shown comprises a wooden body 10 which may be of the" usualform. Set into thebase of this bobbin is' a cyliridrical sheet inetal bushing 1:2 having it plurality of lugs 13 struckinwardly from the upper part thereof, the number of theselugs being equal to the nuinber of grooves 6, This bushlng may be made of brass orsteel and, it made of steel, ma be hardened,

When this bobbin is placed on the spindle it will automatically'center itself by the engagement of the bushing 12 with the tapered sleeve 5. The lugs 13 will strike the shoulders 7 and, guided on these shoulders,

will turn the bobbin relatively to the spindle as the bobbin descends, the lugs thus passing under the bulged portions 9 of the upper wallsof the grooves. The downward move ment of the bobbin is stopped by its contact with the upper horizontal surface 14 of the whirl body .3. Assuming that the spindle is rotating, the bobbin now will .be positively driven by the engagement of a portion of the wall 8 ofleach groove with the lug 13 which rests in that particular groove. The spindle rotates in a clockwise direction, Figs. Sand 6, and consequently the overhanging portion 9 of the upper wallet each groove acts on the lug 13 in that groove to force the lug downwardly in much the same way that the threads of a screw would operate on a follower or nut engaged by the screw lVhen, therefore, the, bobbin is simply dropped onithe runningspindle, it is forced down into its operativerelationship to the spindle by the action of the walls of the grooves 6 on the lugs 13. The inclined upper walls 8 of thegrooves also prevent the bobbin from beingaccidentally lifted oil its seat on the whirl by the traverse of the thread, or for any other reason. That is, the, action of the grooves on the lugs, as just described, holds the bobbin down and effectually prevents it from rising accidentally. a

\Vhen it is desired to doll the bobbin it is simply: necessary to grasp'itvand lift it, this movement resulting in relatively turning the bobbin and spindlefar enough to disengage the lugs 13 from the bulged or overhanging portions 9 of the grooves. Due to the .fact that the grooves are, very steeply inclined, a

very slight turning movement only is re quired to release the lugs fromthegroovesj v, This will be evident from an. inspection of Figs. 4, 5 and 6, in whichFigsg l and 6 show the lugslS intheir running positions inthe groovesfi. It will be observed that it isime possible to lift the bobbin ofi' the spindle simply by a movement parallel to the spindle, duetoithe fact that the parts 9 overlie the lug,13. WVhen the bobbin is rotated slightly in a clockwise direction,however, or the spindle 2 is rotated slightly in the opposite -direction, the lug 13 is then released from the shoulder 9, as shown in Fig. 5, and thebobbin may be slipped oii the spindle.

In this construction theheight of the bobbin relatively to the spindle preferably is fixed by virtue of the fact that the bobbin rests on the seat or surface 14, and in fact is held against this seat by the action of the grooves 6 on the lugs 13. This construction, therefore, effectually avoids the variation in level of the bobbins which has been a troublesome factor in prior constructions. The taper of the sleeve 5 ismade very slight and the lower end of the bushing 12 its the portion of the spindle which it engages when the bobbin is seated on thesur'face 1%. In this construction the taper simply serves to center the bushing, all the driving being done by the action of the walls of the grooves on the lugs 13. It is not necessary, therefore, to make the sleeve 5 tapered, but it can be made cylindrical in form and the bushing 12 made to slide freely onthe part :3 without having excessive looseness.

Preferably the base of the bobbin is inter- ,nally bevelled, as shown at 15, Fig. l. This base of the sleeve 5 to receive the threads which accumulate on this portionol? the whirl. Aronsiderable quantity of stripping thread canaccumulate on the sleeve before it is necessary to remove it.

It will now be appreciated that this invention provides a construction whicl'i has all the advantages of the clutch type of spindle, while at the same time avoiding its objecticmable features. The bobbin can be put on the spindle or dolled while the spindle is running, the bobbin goes on without chaltrr and is securely held in its operative position on the spindle. At the same time the construction is very simple, can be manufactured economically, and is not liable to get out of order \Vhile I have herein shown and described the best embodiment of my invention that I a have so far devised, it is contemplated that the invention may be embodied in other forms without departingfrom' thespirit or scope thereof. For example, thegrooved end of the sleeve 5 can be made in a separate piece andlorred on to the spindle, this construction having the advantage of permitt ng the grooved piece to be harcilencd.

Also, I. haveshown the sleeve 5 provided with four grooves 0, but this number, and

the number of lugs, can bevaried as found,

used independently of the shoulder 14 Hit should be desiredto eliminate the latter and depend on the tapered sleeve to stop the downward movement ofthe bobbin.

It willalso be evident that the groove and lug construction of the sleeve 5 and bushing 12 might, be reversed, the grooves being formed in the bushing, and the lugs on the sleeve. This, however,.will, be an obvious reversal of the parts and therefore would be within the scope of the present invention.

As above stated, the spindle shown in the drawings is designed to run in a clockwise direction, which is the more common practice. In adapting this invention to spindles that runin a counter-clockwise direction, it is simply necessary to cut the grooves 6 in a direction oppositely inclined to that of the grooves shown in the drawings, as will be evident, and to direct the lugs 13 opposite to those shown in the drawings so that they will cooperate with the grooves in the same manner and produce the same results as described above.

Havin thus described my invention, what 0 b n I desire to clann as new 1s: v

1. The combination of a spindle and a bobbin, said spindle and bobbin having co operating parts serving to utilize the rotary motion of the spindle to draw the bobbin positively downward on the spindle into its driving relationship thereto when the bobbin dropped on the running spindle, but permitting the bobbin to be freed from the running spindle by an upward pull on the bobbin.

The combination of a spindle, a whirl mounted on said spindle, and a sleeve projecting upwardly from said whirl, said sleeve having a steeply inclined groove extending downwardly from the top thereof but extending circun'iferentially thereof for a short distance only. I

3. The combination of a spindle, awhirl mounted on said spindle, a sleeve projecting upwardly from said whirl and having one or more steeply inclined grooves extending from the peripheral surface of the sleeve inwardly and upwardly to the upper surface of the sleeve, the upper wall of each groove being cut away to provide an inclined sursleeve having a plurality of shoulders runhang at a steep incline from the peripheral surface thereof inwardly and upwardly to the top of the sleeve, each of said shoulders being adapted to support and guide one of said lugs, and the metal of said sleeve above each shoulder being shaped to form a bulge to overlie a lug resting on said shoulder and prevent the movement of the lug upwardly in a direction parallel to the spindle.

5. The combination of a spindle, a whirl mounted on said spindle, a sleeve projecting upwardly from said whirl and having one or more steeply inclined grooves extending from the peripheral surface of the sleeve inwardly and upwardly to the upper surface of the sleeve, each of said grooves having an abruptlower wall and a gradually inclined upper wall with a portion of said upper wall overlying the bottom of the groove.

6. The combination of a spindle, a whirl mounted on said spindle, a sleeve projecting upwardly from said whirl, a bobbin having a metal bushing in the base port-ion thereof to fiton said sleeve, and cooperating parts on said bobbin and bushing-for utilizing the rotary motion of the spindle to draw said bushing and bobbin downwardly on said sleeve.

7. The combination of a spindle, a whirl mounted on said spindle, a sleeve projecting upwardly from the upper surface of said whirl, and a bobbin mounted on said spindle, said bobbin and sleeve having parts cooperating to utilize the rotary motion of the spindle to draw said bobbin downwardly and thereby to hold the base of said bobbin against the top face of said whirl.

. WILLIAM BESVVIOK. 

